MICROWAVE NNS541BF MICRO FUNCTIONS ALL WORK BUT ONLY RUNS FOR A COUPLE OF SECONDS I WOKE UP ONE MORNING AND DISPLAY READ (CHILD) WHATS THAT

Here is a section of the manual for your microwave on child lock, hope this helps.
"L" - Page 7 Press and hold STOP/CLEAR until " L " appears on the display and a BEEP sound is heard. The CHILD LOCK is now set. The time will disappear on the display . To cancel CHILD LOCK press and hold STOP/CLEAR until " L " disappears. You will hear a BEEP when it's released. If any button is pressed, "L" will appear on the display Your oven has a safety feature that prevents accidental running of the oven. Once the child lock is set, you will be unable to use any functions and no cooking can take place. However your child can still open the oven door. Press STOP/CLEAR. Child Lock 7

If microwave runs only without turn table, I am suggest to check if turntable electric motor has got short circuit. If yes, I have some left.

The problem is in the keypad control board or there is no voltage reaching the control system, I recommed having it checked before any work is done.

The first thing I would suggest is a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

If it is still locked or goes into lock mode by itself, the "clear" key on your keypad may be shorting.

Here's how the child lock works on model FMV145:

Child Lock-Out
You may lock the control panel to prevent
the microwave from being accidentally
started or used by children.
To lock or unlock the controls, press and
hold CLEAR/OFF for about three
seconds. When the control panel is
locked, an "L" will be displayed to the
extreme right.

You can find your manual here.

If you think the controller or keypad may have failed, see us here or order parts here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

The first thing I would suggest is a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

If that doesn't work, leave it unplugged for about 5 minutes. Then let us know if the hard reset does not fix it.

The owner's manual is online here and it covers the child lock:

To set the child lock.
Touch and hold
ENTER/START
pad more than 3
seconds. CHILD
LOCK ON will
appear in the display
window with two
beeps.

To cancel the child
lock.
Touch and hold
ENTER/START
pad more than 3
seconds. LOCKED
will disappear and
you hear two beeps.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

There is a Child Safety lock-out feature on some microwave ovens. This enables the user to lock the keypad to prevent children from playing with the control panel. The model number you have this question posted under has this feature enabled/disabled by pressing and holding the "CLEAR/OFF" button for 3 seconds. However, the display reads "LOC" when the feature is activated. I suspect your model number is different because of the display indication you are receiving. Review your owner/operator manual for how to disable the child lock feature. If you no longer have the owner's manual, or if you still have questions, please post back with your BRAND NAME and MODEL NUMBER, so that I may be able to provide you with better assistance. I hope this helps you.

hi,
The F2 code is a keyboard failure. Since it's intermittent I would check for a loose wire/connection. open the control panel and reset the ribbon cable on the circuit board....


thank you,
vijay (vote for me)

Pressing "timer/clock" button 4 times turns on and off demo mode.

Time for a service call. Should not turn on by itself at any cause. Circuit board is my guess. May be cheaper/easier to get new microwave. My first one lasted about 15 yrs--and the circuit board (touchpad) died. Bought new microwave oven.